VMware Xenon up to 1.0.x/1.3.6/1.5.3/1.5.6 access control

Summaryinfo

A vulnerability was found in VMware Xenon up to 1.0.x/1.3.6/1.5.3/1.5.6. It has been classified as critical. Affected by this issue is some unknown functionality. This manipulation causes access control. This vulnerability appears as CVE-2017-4952. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in VMware Xenon up to 1.0.x/1.3.6/1.5.3/1.5.6 and classified as critical. Affected by this vulnerability is an unknown code block. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

VMware Xenon 1.x prior to 1.5.7, 1.5.4, 1.3.7, and 1.1.0 contains an authentication bypass vulnerability due to insufficient access controls for utility endpoints. Successful exploitation of this issue may result in information disclosure.

The bug was discovered 02/13/2018. The weakness was presented 05/02/2018 as not defined mailinglist post (oss-sec). It is possible to read the advisory at seclists.org. This vulnerability is known as CVE-2017-4952 since 12/26/2016. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 78 days. During that time the estimated underground price was around $5k-$25k.

Upgrading to version 1.1.0, 1.3.7, 1.5.4 or 1.5.7 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 103093†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• VMware

Name

• Xenon

Version

• 1.0
• 1.3.0
• 1.3.1
• 1.3.2
• 1.3.3
• 1.3.4
• 1.3.5
• 1.3.6
• 1.5.0
• 1.5.1
• 1.5.2
• 1.5.3
• 1.5.4
• 1.5.5
• 1.5.6

License

• commercial

Website

• Vendor: https://www.vmware.com/
• Product: https://github.com/vmware/xenon/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion